Extend wp_login_failed action

[hamedmoodi]

currently when login failed trigger developer can not find out what happened that trigger this error.
its better developer can find out what happen for some operation such as security log, or notification and ...

although developer can rewrite authenticate function but its good for general wordpress operations.

my offer is add $user to wp_login_failed action for control errors in
thanks

[rixeo]

I don't thins the $user object can be added as at this point authentication has failed, so technically there is no user object

[hamedmoodi]

login failed may be trigger when password is incorrect or captcha code is not valid or another resosn that user exists but can not validate another params

[rixeo]

At the point the action wp_login_failed is called, the user object is a WP_Error object, passing it as a parameter will be passing the error object

[hamedmoodi]

Yes, i this WP_Error object keep error(s) that happended such as invalid captcha.
i want exactly WP_Error for analyze what error happened

[SergeyBiryukov]

In 46971:

Login/Registration: Pass the error data to the wp_login_failed action.

Props hamedmoodi, rixeo.
Fixes #49007.

[SergeyBiryukov]

#30789 was marked as a duplicate.

[audrasjb]

Documentation added in the miscellaneous changes dev note: ​https://make.wordpress.org/core/2020/02/26/miscellaneous-developer-focused-changes-in-wordpress-5-4/